Nut-lock.



S. L. JOHNSON.

NUT LOOK. APPLICATION FILED APR. 9, 1914- Patented Mar. 16, 1915.

S. L.J0hnson its position on the bolt.

SANFORD nJo NsoN, or soornanng GEORGIAN NUT-LOCK.

To all whom it may concern: I

Be it knownthat I, SANFORD L. J oHNsoN, a citizen of the United States,residing at Scotland, in the county of Telfair and State of Georgia,have invented certain new and useful Improvements in, Nut-Locks, 1 ofwhichthe following is i aspecification.

This invention relates to new and useful f improvements in nut locks,and has for its principal object to provide a'device which is capableofbeing applied to a nut of the ordinary type without materially changingthe construction thereof.

1 Anotherobject of the invention is to-pro- 5 be tightened and will holdthe same from becoming loosened and backing off from the bolt. 1 v

With these. 'and'other objects in view the invention consists inlthenovel combination and arrangement of parts fully set forth in the.following specification and accompanying drawings, in which,

Figurel is a plan view of a nut lock constructed in accordance with thisinvention, and Fig. 2 is a detail sectional view taken Referring now tothe drawings by 'characters of reference, the nut or body portion whichis designated by the numeral I 13, is provided with the recess 14, theuse 'of which will appearas the description proceeds. generally by thenumeral 15, comprlses the enlarged portion 16, the free end of whichisbent inwardlyjas at 17-and is arranged to enter the grooves 6 in thebolt 4 when-the device'is in use. 'The end of the enlarged portion 16opposite the inturned end 17 is reduced and extended, as at 187and bentangularly as at 19 to form the portion 20 through which the rivet 21,which holds the .device in place on the nut, is adapted to extend. Thefree terminal of the portion Specification of Letters Patent. v

Application filed April 9, 1914. Serial no. 830,764.

the end opposite the ring and is, arranged to gage the grooves 6androtation ofthe nut "a slight turning of said key it 'will be evi'de'ntthat the. lug'26 will;,.engagethe inside The pawl which isdesignated 20 is bent downwardly as at Fig.2 7 and lies parallel to oneof the sides of the nut, thus more securely vholding the device in place7 and. preventing the same from turning on the rivet 21. "It "will thusbe seen that the-pawl will be held in operative position at all times bythe member 22.

The key, by meansof which the pawl" is released which isdesignatedgenerally by the numeral 23, preferably comprises theshank24s, whichterminates at its upper eX- tremity in-the ring 25 bymeans of which the operation; of the device is controlled. The

usual lug 26' is formed :on the shank near Paaaaamr.16,1915;

e h inside f hfi PW1yto raise "the V same out ofjengagement with theshank of' the bolt to permit the 'nutto be removed. a y

when it is so desired. 7

It willbe apparent from. the foregoing the usual'mannerand turned to thedesired position. During the turning'of the nut it will also be evidentthat the pawl will en r that in use the nutis placed on the bolt in withrelation to the bolt in theopposite di-i' 1 rectionwill be preventedShould it :be desired at any timetofremovethe nut," the key 23' isinsertedin the re cess" 14; and, upon ofthe pawl and raiseflthesame S0that the free end thereof will be lifted from its sition in the grooveandthe rotation of the f nut willthus be permitted. v I

While in the. foregoing there has been ment of this invention, it istobe understood that such changes may be made in the combination andarrangement of parts shown and described the preferred embodi aswillffall within the spirit, and scope of.

the invention clalm.

A nut lock. including the combination I with a bolt. having a groovedshank, of a g thus-'desoribed'my invention, claim:

as defined the appended] v nut having a centrally located internally.screw threaded-aperture, a pawl secured to the outer face of the nut,said pawl being a1": 100,

ranged to engage in the groove in the shank of In testimony whereof Iaffix my signature the bolt, and an angular extension at the end inpresence of two Witnesses.

of the pawl opposite the one Which engages SANFORD L JOHNSON the groove,said angular extension lying adjacently to one of the sides of the nutto Witnesses:

hold the pawl against movement and posi- E. M. AULD,

tioned to engage the shank of the bolt. C. W. LANCASTER.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner e2 Eatents, Washington, D. C."

